版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/itsme_web/article/details/82592937
【前言】：
在早前，我们已经分享过"在salesforce中使用FieldSet实例"，该实例覆盖了fieldSet在detail页面及List列表页的实际应用，那么本篇我们将介绍如何基于fieldSet的字段做动态查询。
【场景描述】：
同一个role下的A/B两个user创建的Lead可以互相共享记录，那被共享人仅仅只能看到部分字段，由于其他原因我们最终使用fieldSet来进行可配置化开发。由于Lead detail页面是通过访问list页面中的超链接显示的，因此我们使用了visualforce tab来代替标准的Lead Tab。
【代码示例】：
1. Lead List Page：
<apex:page id="thePage" standardController="Lead" recordSetVar="leads" tabStyle="Lead">
<apex:includeScript value="{!$Resource.cryptoJs}"/>
<style>
div[id*=linkPanel] {
text-align: center;
padding-top: 7px;
}
</style>
<apex:form id="theForm">
<!-- Section Header -->
<apex:sectionHeader title="Leads" subtitle="Home"/>
<!-- Filter Section -->
<apex:panelGrid columns="2">
<apex:outputLabel value="View:" style="font-weight: bold;"/>
<apex:selectList value="{!filterId}" size="1">
<apex:actionSupport event="onchange" rerender="theForm"/>
<apex:selectOptions value="{!listviewoptions}"/>
</apex:selectList>
</apex:panelGrid>
<!-- Data List Section -->
<apex:pageBlock id="theBlock" title="Leads">
<!-- New Button -->
<apex:pageBlockButtons location="top">
<apex:commandButton value="New" onclick="navigateToUrl('/setup/ui/recordtypeselect.jsp?ent=Lead&retURL=%2F00Q%2Fo&save_new_url=%2F00Q%2Fe%3FretURL%3D%252F00Q%252Fo',null,'new');return false;"/>
</apex:pageBlockButtons>
<!-- Data Table -->
<apex:outputPanel rendered="{! NOT(ISBLANK(leads))}">
<apex:pageBlockTable id="theTable" value="{!leads}" var="ld">
<apex:column headerValue="Name">
<apex:outputLink value="javascript:navigateToDetail('{! $label.privateKey}', '{! $label.initializationVector}', '{!ld.Id}')">{!ld.Name}</apex:outputLink>
<!--<apex:outputLink value="/apex/LeadPage?id={!ld.Id}">{!ld.Name}</apex:outputLink>-->
</apex:column>
<apex:column headerValue="Company" value="{!ld.Company}" />
<apex:column headerValue="Email" value="{!ld.Email}" />
<apex:column headerValue="Lead Status" value="{!ld.Status}" />
<apex:column headerValue="Lead Source" value="{!ld.LeadSource}" />
<apex:column headerValue="Country" value="{!ld.Country}" />
<apex:column headerValue="State/Province" value="{!ld.State}" />
</apex:pageBlockTable>
<!-- Page Info -->
<apex:outputPanel id="linkPanel" layout="block">
<!-- Previous Page -->
<!-- active -->
<apex:commandLink action="{! Previous}" value="« Previous" reRender="theForm" rendered="{! HasPrevious}" />
<apex:outputText style="color:#ccc;" value="« Previous" rendered="{! NOT(HasPrevious)}" />
<!-- Next Page -->
<!-- active -->
<apex:commandLink action="{! Next}" value="Next »" reRender="theForm" rendered="{! HasNext}" />
<apex:outputText style="color: #ccc;" value="Next »" rendered="{! NOT(HasNext)}" />
<!-- Page X of Y -->
<apex:outputText style="float: right;" value="{! PageNumber}／{! CEILING(ResultSize / PageSize)}" />
</apex:outputPanel>
</apex:outputPanel>
<apex:outputPanel rendered="{! ISBLANK(leads)}">
No records to display.
</apex:outputPanel>
</apex:pageBlock>
</apex:form>
<script type="text/javascript">
function navigateToDetail(key, iv, data) {
var url = '/apex/LeadPage?param=';
var key = CryptoJS.enc.Utf8.parse(key);
var iv = CryptoJS.enc.Utf8.parse(iv);
var srcs = CryptoJS.enc.Utf8.parse(data);
var encrypted = CryptoJS.AES.encrypt(srcs, key, {
iv: iv,
mode:CryptoJS.mode.CBC,
padding:CryptoJS.pad.Pkcs7
});
url += encodeURIComponent(encrypted.toString());
window.location.href = url;
}
</script>
</apex:page>2. 下面我们来看Lead detail页面的逻辑和自定义页面：
/*
* Fields controlled by fls
*/
public class LeadController {
public final Lead lead {get;set;}
public Boolean isSameRole {get;set;}
public Boolean isSameUser {get;set;}
public static String loginUserRole = UserInfo.getUserRoleId();
public static String loginUser = UserInfo.getUserId();
public LeadController() {
String param = ApexPages.currentPage().getParameters().get('param');
System.debug('param: ' + param);
String recId = CryptoUtil.decryptData(param, 'decrypt');
System.debug('decryptedResult: ' + recId);
String query = 'SELECT ';
for(Schema.FieldSetMember f : SObjectType.Lead.FieldSets.Lead_Field_Set.getFields()) {
query += f.getFieldPath() + ', ';
}
query = query.toLowerCase().contains('ownerid') ? query.left(query.length() - 2) : query + 'OwnerId';
query += ' FROM Lead WHERE Id = \''+ recId +'\'';
System.debug('query: ' + query);
this.lead = Database.query(query);
System.debug('lead: ' + lead);
String recordRole = [SELECT UserRoleId FROM User WHERE Id = :lead.OwnerId LIMIT 1].UserRoleId;
// if the login user and the record user is in the same role level, the login user cannot edit record.
isSameRole = loginUserRole.equals(recordRole);
isSameUser = loginUser.equals(lead.OwnerId);
System.debug('isSameRole: ' + isSameRole);
System.debug('isSameUser: ' + isSameUser);
}
}<apex:page controller="LeadController" tabStyle="Lead">
<apex:detail subject="{!Lead.Id}" relatedList="true" title="true" inlineEdit="true" showChatter="true" rendered="{! OR(Not(isSameRole), isSameUser)}"/>
<apex:outputPanel id="viewWrap" rendered="{! AND(isSameRole, !isSameUser)}">
<apex:sectionHeader title="Lead" subtitle="{! lead.Name}"/>
<apex:pageBlock title="View Shared Lead" mode="detail">
<apex:pageBlockSection columns="2">
<apex:repeat value="{!$ObjectType.Lead.FieldSets.Lead_Field_Set}" var="f">
<apex:outputField value="{!Lead[f]}"/>
</apex:repeat>
</apex:pageBlockSection>
</apex:pageBlock>
</apex:outputPanel>
</apex:page>【总结与归纳】：
1. 在detail页面controller里面，ownerId是必须的，我们不确定用户是否会添加OwnerId，所以此处做了校验；重复会报错
查询FieldSet中的字段模板：
public static List<String> getFieldsByFieldSet() {
List<String> fields = new List<String>();
for(Schema.FieldSetMember f : SObjectType.Lead.FieldSets.Lead_Field_Set.getFields()) {
fields.add(f.getFieldPath());
}
return fields;
}【参考资料】：FieldSet Class